15w + 3w + 19 = -17

To solve this equation, we can combine like terms on the left side of the equation:

15w + 3w = 18w

So the equation becomes:

18w + 19 = -17

Next, we can isolate the variable w by subtracting 19 from both sides:

18w + 19 - 19 = -17 - 19
18w = -36

Finally, we can solve for w by dividing both sides by 18:

w = -36/18
w = -2